Wrench



March 1, 1932. HARRls 1,847,959

WRENCH Fild April 1, 1931 Inventor flitorney Patented Mar. 1, 1 932 HUNITED S A ES JASON HARRIS, or MOUNT AIRY, NORTH oaaonrnaifn'ssienon, :BY 51mm AND MESNE ASSIGNMENTS, TO THE HARRIS WE on oma me, or .ivrou'iv'rAIR-Y,

NORTH CAROLINA, A CORPORATION or Non-TH CAROLINA.

wmmcir Application filed A rn '1, 1931. Serial 1%. 526,951.'

7 a quicklyand easily adjustable wrench.

This invention also consists in certain other features of constructionand 1n the combination and arrangement of the several parts, 1 to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is an elevation, with parts in section, of the improved wrench.

Figure 2 is an edge view looking-toward the rack teeth of the shank.

Figure 3 is an elevation of the movable aw.

In these drawings, the numeral 1 indicates the shank of the wrench whichon its inner edge is formed with the rack teeth 2 and the numeral 3indicates the stationary jaw connected to one end of the shank. Themovable jaw is made in the form of a casing 4 which is slidably arrangedon the shank and the sides of which are formed with diagonally arrangedelongated openings 5 for receiving the ends of a shaft 6 which carries apinion 7 which is located in the casing 4. A handle 8 has one end forkedas shown at 9 and the the rack teeth this movement will impart aends ofthe prongsof this fork-ed part are connected with the ends of the shaft6 so that by rocking the handle the shaft will be rocked V to impart asimilar movement to the pinion and if'the teeth of the pinionare in meshwith movement to the casing 1 so that the same will be adjustedtoward'or away from the stationary jaw.

By pulling outwardly on the handle the shaft will be moved in the slot 5so that the pinion will be moved out of mesh with the rack teeth whichwill permit the casing a to be rapidly moved on the shank. Thus themovable jaw can be easily and quickly moved against objects placedbetween the stationary jaw and removable jaw and then by moving thehandle the pinionis placed in engagement with the rack teeth and partlyrotating the handle the pinion will be rotated to move the casing firmlyagainst the articles to grip the same between itself and the stationaryA spring 10 is arranged in the casing adjacent the pinion and acts tonormally hold the same in mesh with the rack teeth.

A jaw member 11 is slidably and removably connected with the operativeface of. the casing by having dovetailed grooves therein engaging thedovetail guideways 12 on the casing so that this aw member will engagean object placed between'the casing and the stationary jaw and by havingthe jaw member removable it can be replaced by other types of jawmemberssuch for instance as the j aw member having teeth thereon forengaging a rounded object such as a pipe wrench or in cases where a flatfaced j aw might not proper- 1y hold an objectplaced between the jaws ofthe wrench. I v

t is thought from the foregoing description that the advantages andnovel featuresv of the invention will be readily apparent.

--Itisto be understood that changes may be I I made in the constructionand in the combination and arrangement of theseveral parts provided thatsuch changes fall 'within'the scope of the appended claim.

The shank 1 is formed with the key 1 which engages a keyway in thehousing. I

Havlng'thus described my invention, what I claim as new is: v

A wrench of the class described comprismg a shank having rackteeth onits inner edge, a stationary 'jaw'extending at right;

angles from one end of the shank, a casing having oppositely arrangedopenings therein through which the shank passes, the sides of the casinghaving diagonally arranged slots therein, the high ends of which arelocated adjacent theshank, a shaft having its ends passing through theslots, a pinion rigidly mounted onthe shaft and locatedwithin thecasing, the teeth ofsaid pinion engaging the teeth of the rack when theends of the shaft are located in the high endsof the slots, a handlehaving a forked end, the

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prongs of which are rigidly connected to the ends of the shaft, a leafspring having one end connected to the casing with its free partengaging the pinion for normally holding the pinion in engagement Twiththe rack, and a jaw carried by the casing'ior co-foperating with thestationary jaw for holding objects between itself and. said stationaryjaw. V

In testimony whereof I affix y sinature.

' JASONHAfiRISI-

